#divOutputPNG{

}
#divOutputPNG img{
    max-width: 220px;
}
#divOutputPNG #input_div{
    display: inline-block;
    width:240px;
    height:240px;
    background: #fff;
    text-align: center;
    margin-left:1px;
    overflow: hidden;
}
#divOutputPNG #input_div #canvas_block{
    display: inline-block;
    width:242px;
    height:242px;
}

#divOutputPNG input{
    display: block;
    text-align: center;
    width:100%;
    font-family: "Microsoft YaHei", "微软雅黑";
    background: #fff;
}